Upanishads are prime portions of the Vedas, They are the foundational theological discourses of Hindu traditions called Vedanta or the conclusion of the Vedas.
Upanishad 6 in English rhyme comprises of the Annapurna Upanishad, Atharvasikha Upanishad, Atharvasiras Upanishad, Avadhuta Upanishad, Avyakta Upanishad, Bahvricha Upanishad, Bhavana Upanishad and Bhikshuka Upanishad.